Improvement in plows



` N0 19:563- 4 Patented Mar 9, 1858;

UNITEn l.STATES PATENT OFFICE.

DAVID HOKE, OF BYHALIA, MISSISSIPPI.

IM PROVEMENT IN PLOWS.

Specification forming part of Letters Patent N0. 19,563, dated March 9, 1858.

To all whom 'it may concern:

Be it known that I, DAVID HOKE, of Byhalia, in the county ot' Marshall and State of Mississippi, have invented a new and Improved Plow; and l do hereby declare that the following is a I'ull and exact description thereof, reference beinghad to the accompanying drawings, making part ot' this specitcation- Figure l being a side elevation of the plow, showing the position of the colter when arranged for surface-plowing; Fig. 2, a similar view thereof, showing the colter lowered for subsoil-plowing; Fig. 3, a central longitudinal vertical section thereofas arranged in Fig. 1; Fig.4,arearelevation thereof; Fig. 5, atop View ot' the stock of the plow; Fig. 6, a rear View of the colter.

Like letters designate corresponding parts in all the (igures.

An ordinary beam, A, is provided, to which handles B B are secured as usual. Thestock C ofthe plow is a simple bar provided with a horizontal flange, a, by which it is secured to the under side of the beam by means of bolts b b. A mortise, d, is formed in the flange, and a corresponding mortise through the beam in a suitable position to receive the colterI D, which is held in the beam by a bolt, 7c, passing through any one of a set of holes, g g, at uniform distances apart. There is also a set of holes or notches, It h, in the rear of the colter near its lower end, (Figs. 3 and 5,) corresponding' in number and distance apart with those in the upper end, for the reception ofthe bolt.

A projection, t', on the lower end of the stock tits into any one of these holes in the back of the colter. Thus the colter may be raised or lowered, as occasion may require, byinserting the bolt 7c and the projection lin the proper The colter is held firmly back against holes.

the point of the stock by means of the wedge E, litted into the mortise d in the flange of the stock, where it binds, its position in the mortise ofthe beam above being merely for holding it in place. The lower end of the colter terminates in a share-like point.

A mold-board, l,ot any desired form, may be secured to the stock behind the colter by bolts m m, passing through holes a n in the stock, and held by nuts, substantially as represented in the drawings. The holes a a are made at u nii'orm distances apart, so that the mold-board may be adjusted to any desired height by removing the bolts to a different set of holes. By this arrangement the plow answers the double purposeot a surface-plow and a sub- K soil-plow by raising or lowering the colter in the manner above described; and mold-boards of all l'orrns desired or used are thus adapted in positions to correspond with those of the colter or to the particular office of the colter in its different positions.

What l claim as my invention, and desire to secure by Letters Patent, is-

l. The arrangementofthe colter D, in combination with the stock C and beam A, substantially in the manner and for the purpose specified.

2. The xnodeofconstructing the stock with a long horizontal iange, a, by which it isL not only secured to the beam but by which the colter is held back against the foot of the stock, substantially as described.

rlhe above description ot' my improved plow signed by ine this 28th day ot' January, 1858.

DAVID HOKE. 

